Joonas Lehtinen has a PhD in computer science and is one of the core developers of Vaadin, a Java-based framework for building business-oriented Rich Internet Applications. Joonas has been developing applications for the web since 1995 with a strong focus on Ajax and Java. He is the founder and CEO of ITMill, the company behind the Vaadin framework.

Get introduced to the newly released Vaadin Web framework by one of its core developers, Joonas Lehtinen. The Vaadin framework provides a desktop-like programming model on the server for creating Rich Internet Applications (RIAs) in plain Java - without the need for HTML, XML, plug-ins or JavaScript.

In this session, Joonas lays out the key concepts of the server-side RIA development model and gives an overview of server-side frameworks like Vaadin, Echo3 and ZK. To further demonstrate the differences between server-side and client-side RIAs, Joonas compares Vaadin to Google Web Toolkit. He concludes with a step-by-step demonstration of how to get started with the Vaadin framework.